Axis mkv file - no video in VLC 1.0.1

[jacco]

When trying to play a .mkv file generated by a Axis Q1755 with VLC it shows no video
The debug concole of VLC show the following error:

non-existing PPS 0 referenced
decode_slice_header error
no frame!

FFmpeg gives the same error

when playing the file with wmp+axis matroska splitter it works fine

How kan I play this file with VLC?

EDIT:
the .conf file that comes with the .mkv has the following content


[Recording]
RecordingUUID=f68f9ca8-8736-11de-8a42-00408c944b97
DiskId=SD_DISK
StartTime=2009-08-12T11:54:54.989075Z
StopTime=2009-08-12T11:59:55.069928Z
RecordingType=scheduled
RecordingStatus=inactive
Locked=no
EventId=mySports

[Stream.Video]
MimeType=video/x-h264
Source=
FrameRate=25:1
Resolution=1280x720
CodecData=AAAAAWdCACnikAoAt2BqwYBBuHiRFQAAAAFozjyA
CapsStr=video/x-h264, width=(int)1280, height=(int)720, framerate=(fraction)25/1

Kind regards,
Jacco

[VLC_help]

Can MKVtoolnix remux the file?

[jacco]

mkvmerge has no problem muxing the video

[kor]

I have the same issue. I tried to install Matroska splitter, does not work. ffmpeg shows same issue as Jacco.

Files posted on www.hardloopwereld.nl/mkv_vlc.zip

Kor

[VLC_help]

Does the file remuxed with mkvtoolnix work any better?

[kor]

No, it does not make any differance.

Still same message in both orginal file and remuxed file for vlc, mencoder and ffempg:

Error while decoding stream #0.0
[h264 @ 0x3ee160]non-existing PPS referenced
[h264 @ 0x3ee160]decode_slice_header error
[h264 @ 0x3ee160]no frame!

File can be downloaded on http://www.hardloopwereld.nl/mkv_vlc.zip

[VLC_help]

MPCHC doesn't play the file either. So I am guessing it isn't following the specs or it has been damaged.

[jacco]

I am able to play the video using windows mediaplayer +matroska splitter

[VLC_help]

You mean Haali Splitter?

[jacco]

I mean the "Axis Matroska Splitter"

[VLC_help]

I am guessing that they are doing some sort of playback trick to make it work but I don't know what they are doing. So I don't know if this could be fixed with some code changes.

[ubkr]

Hello,

The reason the files are not playable in VLC is that the .mkv file does not have the correct codec_privat (I think that is what it is called) data set.
That is the information found in the .conf file and it is used by the Axis Matroska Splitter.

/bjarne

[diafygi]

Hello,
The reason the files are not playable in VLC is that the .mkv file does not have the correct codec_privat (I think that is what it is called) data set.
That is the information found in the .conf file and it is used by the Axis Matroska Splitter.
/bjarne

Has anyone found a way to correct that codec_privat setting or get the Axis Matroska Splitter to work with VLC? I hate having to use WMP to view the videos.

[LaBay]

Hi All

The only way to playback/stream/transcode the Axis MKV files with VLC(Windows only) I've found:
1) download and install VH Multi camera studio(free) from the NET(google will help)... I test it with ver.1.1.8;
2) download and install AXIS Matroska File Splitter(free) from the Axis site(http://www.axis.com/techsup/software/index.htm);
3) start VH MultiCam with the Axis mkv file. Enable output to VH MultiCam video capture device(Tools). You could exit the program now(all settings are saved);
4) start VLC and feed it with VHMultiCam DirectShow device and then Playback/Stream/Transcode. It will start the new instance of VHMultiCam from the beginning of the file automatically. If you want to rewind,- just rightclick on VHMultiCam and do it.

[diafygi]

So I opened a case with Axis technical support, and they sent me a new beta firmware version that fixes this problem. A compliant mkv file is created that you can play on VLC and Avidemux (those are the only two programs I tried). Hooray!

The beta firmware I got was for the Axis Q1755 camera, but I don't think I have permission to post it here. So if you want to get playable mkv files, you will probably have to contact Axis tech support. Here is the filename I was given:

Code: Select all

Q1755_Test-firmware_CST191491-Overlay-time-fix.bin